This is the -tion suffix
A suffix is a group of letters that go at the end of a word to give it meaning
The -tion suffix is used to create nouns
For example, "investigate" is a verb (something that can be done), "investigation" is a noun (person, place or thing)
Synthetic Inquiry: Look through the word list below and see if you can make some rules for the -tion suffix. How do we add -tion when our base word ends in a ?. How do we add -tion when our base word ends in an e? What other rules can you find?
Word List
action
addition
addiction
ambition
attention
competition
condition
condition
devotion
education
fiction
fraction
information
investigation
multiplication
predicition
question
reaction
reflection
relation
station
affection
caution
celebration
ciculatiom
composition
conservation
conversation
description
direction
examination
exhibition
indigestion
precaution
prescription
promotion
promotion
protection
quotation
refraction
sensation
separation
subtraction
ventilation
vibration